The Internet remains awesome for one more day. The reason? This recently unearthed footage of Slug, aka the rapping half of Atmosphere, performing live in 1989. He posted the video on his Facebook page with a note that he "apparently really wanted to be Big Daddy Kane." Slug also tells his past self to "button your shirt," something you'll probably agree with once you watch the video below. Who knows where Midwestern underground hip-hop would be now if Atmosphere had stuck with this approach. Jokes, of course, but this is the best.